Gitanjali Rao: Girl of 11 takes US young scientist prize
Inspired by a contamination scandal, the winner invented a device to test water safely and cheaply.
from BBC News - World http://ift.tt/2xR2S7a
from BBC News - World http://ift.tt/2xR2S7a
Gitanjali Rao: Girl of 11 takes US young scientist prize
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October 19, 2017
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